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Decay studies of N approximate to Z nuclei from Sr-75 to Sn-102

Faestermann, T; Schneider, R; Stolz, A; Summerer, K; Wefers, E; Friese, J; Geissel, H; Hellstrom, M; Kienle, P and Korner, HJ, et al. (2002) In European Physical Journal A. Hadrons and Nuclei1998-01-01+01:00 15(1-2). p.185-188
Abstract
Neutron deficient nuclei near Sn-100 have been produced by fragmentation of a 1 (.) A GeV Sn-112 beam. The fragments were separated, identified and stopped in a highly segmented silicon strip detector stack. This detector measured the total energy of emitted beta(+)-particles. gamma-radiation was measured with surrounding detectors. The half-lives for many nuclides have been determined for the first time and give important information for the following topics: For the heaviest particle-stable odd-odd nuclei Rh-90, Ag-94 and In-98 we observed for the first time fast beta-decays, compatible with superallowed Fermi transitions and confirmed such decays for 78y, 82 Nb and Tc. We have also observed 'long-lived T = 0 states in some of these... (More)
Neutron deficient nuclei near Sn-100 have been produced by fragmentation of a 1 (.) A GeV Sn-112 beam. The fragments were separated, identified and stopped in a highly segmented silicon strip detector stack. This detector measured the total energy of emitted beta(+)-particles. gamma-radiation was measured with surrounding detectors. The half-lives for many nuclides have been determined for the first time and give important information for the following topics: For the heaviest particle-stable odd-odd nuclei Rh-90, Ag-94 and In-98 we observed for the first time fast beta-decays, compatible with superallowed Fermi transitions and confirmed such decays for 78y, 82 Nb and Tc. We have also observed 'long-lived T = 0 states in some of these nuclei. We measured the half-lives of all rp-process waiting-point nuclei from _Zr up to addition we find the proton drip line nucleus Y-77 to decay dominantly via beta-decay, To study the Gamov-Teller strength in the beta-decay near the doubly magic Sn-102 we measured the half-life, beta- and gamma-spectrum of Sn-102. We propose a level scheme for the daughter nuclide In-102 and deduce the Qamov-Teller strength (B-GT = 4.0 +/- 0.6). This is one of the largest values known. (Less)
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European Physical Journal A. Hadrons and Nuclei1998-01-01+01:00
volume
15
issue
1-2
pages
185 - 188
publisher
Springer
external identifiers
  • wos:000179688500039
  • scopus:0036770654
ISSN
1434-6001
DOI
10.1140/epja/i2001-10251-7
language
English
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4a870b31-dcb1-4334-bee9-c840e5d6b1aa (old id 321738)
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2007-08-17 11:43:52
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@article{4a870b31-dcb1-4334-bee9-c840e5d6b1aa,
  abstract     = {Neutron deficient nuclei near Sn-100 have been produced by fragmentation of a 1 (.) A GeV Sn-112 beam. The fragments were separated, identified and stopped in a highly segmented silicon strip detector stack. This detector measured the total energy of emitted beta(+)-particles. gamma-radiation was measured with surrounding detectors. The half-lives for many nuclides have been determined for the first time and give important information for the following topics: For the heaviest particle-stable odd-odd nuclei Rh-90, Ag-94 and In-98 we observed for the first time fast beta-decays, compatible with superallowed Fermi transitions and confirmed such decays for 78y, 82 Nb and Tc. We have also observed 'long-lived T = 0 states in some of these nuclei. We measured the half-lives of all rp-process waiting-point nuclei from _Zr up to addition we find the proton drip line nucleus Y-77 to decay dominantly via beta-decay, To study the Gamov-Teller strength in the beta-decay near the doubly magic Sn-102 we measured the half-life, beta- and gamma-spectrum of Sn-102. We propose a level scheme for the daughter nuclide In-102 and deduce the Qamov-Teller strength (B-GT = 4.0 +/- 0.6). This is one of the largest values known.},
  author       = {Faestermann, T and Schneider, R and Stolz, A and Summerer, K and Wefers, E and Friese, J and Geissel, H and Hellstrom, M and Kienle, P and Korner, HJ and Mineva, Milena and Munch, M and Munzenberg, G and Schlegel, C and Schmidt, K and Thirolf, P and Weick, H and Zeitelhack, K},
  issn         = {1434-6001},
  language     = {eng},
  number       = {1-2},
  pages        = {185--188},
  publisher    = {Springer},
  series       = {European Physical Journal A. Hadrons and Nuclei1998-01-01+01:00},
  title        = {Decay studies of N approximate to Z nuclei from Sr-75 to Sn-102},
  url          = {http://dx.doi.org/10.1140/epja/i2001-10251-7},
  volume       = {15},
  year         = {2002},
}